CN107403576A - Convex lens image-forming discipline experiment device for teaching - Google Patents
Convex lens image-forming discipline experiment device for teaching Download PDFInfo
- Publication number
- CN107403576A CN107403576A CN201610340230.1A CN201610340230A CN107403576A CN 107403576 A CN107403576 A CN 107403576A CN 201610340230 A CN201610340230 A CN 201610340230A CN 107403576 A CN107403576 A CN 107403576A
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- China
- Prior art keywords
- convex lens
- measure board
- candle
- experiment device
- rotating seat
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/22—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for optics
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Optimization (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Algebra (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Optics & Photonics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Accessories Of Cameras (AREA)
Abstract
A kind of convex lens image-forming discipline experiment device for teaching is provided, there are convex lens, convex lens side is provided with candle, opposite side is provided with optical screen, convex lens are fixed in cranse, and cranse is fixed on Measure Board, Measure Board by can relative displacement in the horizontal direction upper Measure Board and lower Measure Board form；Candle has more, and more candles are adapted to the rotating seat of multiple adjustable candle height, and lower Measure Board upper end is fixed in rotating seat lower end；Upper Measure Board upper end is provided with guide ring, and guide ring interpolation connects tubular elements and tubular elements move along the axial pull of guide ring, and the circular cylinder bottom of tubular elements is provided with optical screen towards the end of convex lens.The present invention is simple in construction, operation is easy, and is easily achieved during making, intuitively can easily demonstrate the imaging law of convex lens.
Description
Technical field
The invention belongs to experiment teaching aid technical field, and in particular to a kind of convex lens image-forming discipline teaching experiment dress
Put.
Background technology
Convex lens follow certain rule by dioptric imaging and its imaging, and it is imaged empty or real, amplification
Or diminution and upright or handstand are that rule change is presented with the change of object distance and image distance.Imparted knowledge to students
Cheng Zhong, how by it is this in rule change imaging process, intuitively demonstrated to student by teaching aid
It is technical problem urgently to be resolved hurrily.Drilled under prior art in some experiment teaching aids by the use of candle as light source
Show it is the most directly perceived and convenient because it is image source again that candle, which is light source in itself, and into upright or handstand picture
Also easily differentiate, however, with the burning of candle, flame core can be moved down gradually, it is necessary to constantly seek again
Look for flame core；In addition, the line between light source flame core and convex lens and optical screen center needs to form a water
Horizontal line, image-forming demonstration effect just it is optimal, and the candle constantly to be burnt as light source lack it is this can be vertical
The device of lifting at any time on direction；Furthermore the too high apparatus for demonstrating structure of some precision is unavoidably excessively complicated,
Cost is too high, and manufacture is not easy, it is therefore necessary to improves.
The content of the invention
Present invention solves the technical problem that：A kind of convex lens simple in construction, easily fabricated and realization are provided
Imaging law experiment device for teaching, solution candle can not lift at any time and convex lens image-forming discipline is with image distance
Change and continually changing ocular demonstration problem.
The technical solution adopted by the present invention：Convex lens image-forming discipline experiment device for teaching, there are convex lens,
The convex lens side is provided with candle, and opposite side is provided with optical screen, and the convex lens are fixed in cranse, institute
State cranse and be fixed on Measure Board upper end, the Measure Board by can relative displacement in the horizontal direction upper scale
Plate and lower Measure Board composition；The candle has more, and more candles are adapted to multiple adjustable waxes respectively
The rotating seat of candle height, and lower Measure Board upper end is fixed in rotating seat lower end；Upper Measure Board upper end is provided with and led
Xiang Huan, guide ring interpolation connects tubular elements and tubular elements move along the axial pull of guide ring, the circle of tubular elements
Shape cylinder bottom is provided with optical screen towards the end of convex lens.
The upper Measure Board lower end has concaveconvex structure and realizes water by concaveconvex structure with lower Measure Board upper end
Square upward relative displacement.
The rotating seat is made up of threaded rod and nut seat, and the nut seat lower surface is fixed on Measure Board
End, the threaded rod bottom screws with nut seat top to be connected, and threaded rod top outer circle wall be formed with it is anti-
Sliding line.
The number of the candle and rotating seat is all higher than being equal to four.
The upper surface of the Measure Board is equipped with graduation mark with left and right sides end face.
The present invention compared with prior art the advantages of：
1st, upper Measure Board and lower Measure Board can relative displacement, while facilitating view finding, be also convenient for changing image distance,
It is easy to the change demonstration of imaging law；
2nd, the setting of more candles make it that lecture experiment is more efficient and convenient compared with a candle, can be by lighting
The candle of diverse location demonstrates the imaging law of convex lens；
3rd, candle number is at least four, can be at one times of focal length, at two times of focal lengths, more than one during implementation
Times focal length is less than at two times of focal lengths, and at more than two times focal lengths, at least this four points set candle respectively,
The rule come ocular demonstration convex lens to change with object distance and presented changes；
4th, rotating seat can consume with the burning of candle and adjust its height in time, it is ensured that imaging effect.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the structural representation of rotating seat in Fig. 1.
Embodiment
A kind of embodiment of the 1-2 descriptions present invention below in conjunction with the accompanying drawings.
Convex lens image-forming discipline experiment device for teaching, has convex lens 5, and the side of convex lens 5 is provided with wax
Candle 9, opposite side is provided with optical screen 4, and the convex lens 5 are fixed in cranse 6, and can be by adjusting cranse
6 sizes fix the convex lens 5 of different focal, and the outside lower end of cranse 6 is fixed on Measure Board upper end,
The Measure Board by can relative displacement in the horizontal direction upper Measure Board 1 and lower Measure Board 8 form；On
Measure Board 1 and lower Measure Board 8 can relative displacement, facilitate view finding, be also convenient for adjusting image distance, be easy to be imaged
The change demonstration of rule.The candle 9 has more, and the setting of more candles 9 causes compared with a candle
Lecture experiment is more efficient and convenient, can easily demonstrate convex lens by lighting the candle 9 of diverse location
Imaging law.And more candles 9 are adapted to the rotating seat 10 of multiple adjustable candle height, rotating seat 10
It can in time revolve with the burning consumption of candle and rise its height, it is convenient to be preferably imaged；The lower end of rotating seat 10 is consolidated
Due to the lower upper end of Measure Board 8；The upper upper end of Measure Board 1 is provided with guide ring 3, and the interpolation of guide ring 3 connects tubular elements
11 and tubular elements 11 moved along the axial pull of guide ring 3.The setting of guide ring 3 is avoided that optical screen 4 is sought
As when skew, the circular cylinder bottom of tubular elements 11 is provided with optical screen 4 towards the end of convex lens 5,
The lower end of upper Measure Board 1 has concaveconvex structure and by concaveconvex structure reality with the lower upper end of Measure Board 8
Relative displacement in existing horizontal direction.Specifically as shown in figure 1, the lower end of upper Measure Board 1 be formed with it is recessed
Groove, the right part upper end of lower Measure Board 8 is formed with slides the projection being adapted to groove.
For convenience of lifting candle 9 is rotated at any time, the rotating seat 10 is by 13 groups of threaded rod 12 and nut seat
Be fixed on Measure Board upper end into, the lower surface of nut seat 13, the lower external thread of threaded rod 12 with
The upper internal threaded of nut seat 13 screws connection, and the top outer circle wall of threaded rod 12 is formed with anti-slip veins.
The upper surface of the Measure Board is equipped with graduation mark 7 with left and right sides end face, facilitates student and operation old
Teacher intuitively learns the focal length of object distance, image distance or convex lens 5.
The candle 9 and rotating seat 10 are more than or equal to four.The number of candle 9 is at least four, during implementation
Can be at one times of focal length, at two times of focal lengths, more than one times focal length is less than at two times of focal lengths, and more than two
At least this four points set candle 9 respectively at times focal length, carry out ocular demonstration convex lens with object distance change and
The rule change of presentation, such as when lighting the candle 9 at one times of focal length, optical screen 4 is not imaged；It is big when lighting
It is less than the candle 9 at two times of focal lengths, real image of the optical screen 4 into handstand, amplification in one times of focal length；When lighting two
Candle 9 at times focal length, optical screen 4 into stand upside down, etc. big real image；When lighting more than the wax at two times of focal lengths
Candle 9, real image of the optical screen 4 into handstand, diminution.
Above-described embodiment, simply presently preferred embodiments of the present invention, is not used for limiting the scope of the present invention,
Therefore all equivalence changes done with content described in the claims in the present invention, all should be included in right of the present invention will
Within the scope of asking.
Claims (5)
1. convex lens image-forming discipline experiment device for teaching, there is convex lens (5), the convex lens (5)
Side is provided with candle (9), and opposite side is provided with optical screen (4), it is characterised in that：The convex lens (5) are solid
In the cranse (6), the cranse (6) is fixed on Measure Board upper end, and the Measure Board is by can be in water
Square upwards relative displacement upper Measure Board (1) and lower Measure Board (8) form；Candle (9) tool
There are more, and more candles (9) are adapted to the rotating seat (10) of multiple adjustable candle height respectively, and
Lower Measure Board (8) upper end is fixed in rotating seat (10) lower end；Upper Measure Board (1) upper end, which is provided with, to be oriented to
Ring (3), guide ring (3) interpolation connects tubular elements (11) and tubular elements (11) are along guide ring (3)
Axial pull movement, the circular cylinder bottom of tubular elements (11) is provided with optical screen (4) towards the one side of convex lens (5).
2. convex lens image-forming discipline experiment device for teaching according to claim 1, it is characterised in that：
Upper Measure Board (1) lower end has concaveconvex structure and passes through concaveconvex structure with lower Measure Board (8) upper end
Realize the relative displacement in horizontal direction.
3. convex lens image-forming discipline experiment device for teaching according to claim 1, it is characterised in that：
The rotating seat (10) is made up of threaded rod (12) and nut seat (13), the nut seat (13)
Measure Board upper end is fixed in lower end, and threaded rod (12) bottom screws with nut seat top to be connected, and
Threaded rod (12) top outer circle wall is formed with anti-slip veins.
4. convex lens image-forming discipline experiment device for teaching according to claim 1, it is characterised in that：
The number of the candle (9) and rotating seat (10) is all higher than being equal to four.
5. convex lens image-forming discipline experiment device for teaching according to claim 1, it is characterised in that：
The upper surface of the Measure Board is equipped with graduation mark (7) with left and right sides end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610340230.1A CN107403576A (en) | 2016-05-20 | 2016-05-20 | Convex lens image-forming discipline experiment device for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610340230.1A CN107403576A (en) | 2016-05-20 | 2016-05-20 | Convex lens image-forming discipline experiment device for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107403576A true CN107403576A (en) | 2017-11-28 |
Family
ID=60389477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610340230.1A Pending CN107403576A (en) | 2016-05-20 | 2016-05-20 | Convex lens image-forming discipline experiment device for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107403576A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822189A (en) * | 2022-04-22 | 2022-07-29 | 聊城高级财经职业学校 | Optical lens demonstration device for replacing and adjusting lens and focal length through computer |
-
2016
- 2016-05-20 CN CN201610340230.1A patent/CN107403576A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822189A (en) * | 2022-04-22 | 2022-07-29 | 聊城高级财经职业学校 | Optical lens demonstration device for replacing and adjusting lens and focal length through computer |
| CN114822189B (en) * | 2022-04-22 | 2023-08-11 | 聊城高级财经职业学校 | Optical lens demonstration device capable of adjusting lens and focal length through computer replacement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171128 |